How to merge "Untitled" disk with "Macintosh HD" on intel iMac

[clayton620]

I just received an iMac from a friend who didn't need it anymore. When I started it up, I noticed there were two hard drives on the desktop: "Macintosh HD" and "Untitled." I know the Untitled is used for running Boot Camp but I don't want to use Windows on this machine. I'd like to erase that drive and move it's memory over to the "Macintosh HD." Any ideas?

 

[Tallest Skil]

Go into Applications, Utilities, Boot Camp Utility, and erase the partition.

 

[clayton620]

Ok, I opened up Finder and when I went to Utilities, there was no Boot Camp Utility. There was, however, a disk utility and I opened up that but it wouldn't let me erase the "untitled" disk. All the fields were grayed out and I couldn't do anything except unmount it. Any ideas what's wrong?

 

[harry454]

it might have been just a external drive unplugged improperly, see if your hardrive size matches your Macintosh hd size